Abstract:
Groundwater is, no doubt, a resource needed for the sustainable development of any country.
Remote sensing and GIS technology have proved to be efficient in the monitoring of earth
resources, including groundwater. Akure is a fast-growing city which requires groundwater
modelling as a component of its developmental strategy. The hydrogeological factors at play in
the study area are considered for this study. Thematic maps of lineaments, land cover, and
geomorphology were produced by direct digital image processing of Landsat ETM+ of the study
area. Other data such as the geology, contour, slope, rainfall, and soil, were also obtained from
respective thematic maps of the area. The various factors and their intangibles (individual
attributes) are assigned weights and reclassified according to their relative importance to
groundwater occurrence by using Analytical Hierarchy Process (AHP). The Weighted overlay
was subsequently used in modelling the groundwater potential of the study area. Areas with
poor, fair, moderate, good and very good groundwater potentials were delineated and their
relationships with the various hydrogeological parameters established. The study demonstrated
the effectiveness of remote sensing and GIS as a time-saving and cost-effective tool for
delineation and identification of very prolific groundwater potential target areas.
